Brace sheet and timber beam intersecting structure

Abstract

To provide a brace sheet and a timber beam crossing structure that can contribute to the standardization of connecting hardware regardless of the beam depth of the timber beam, and that can prevent large additional stresses from occurring in the timber beam and its joints. [Solution] The brace sheet 50 has a first contact piece 51A and a second contact piece 51B that abut against the respective side surfaces 11 of the first timber beam 10A and the second timber beam 10B, which are equipped with a first pin hole 16, and intersect each other in a continuous manner, and a support piece 55 that is fixed to the wide surfaces of both the first contact piece 51A and the second contact piece 51B and supports the end 65 of the brace 60, and both the first contact piece 51A and the second contact piece 51B are provided with elongated holes 53 that are long in the beam depth direction of each timber beam 10 at positions corresponding to the first pin hole 16, and fasteners are inserted through at least the corresponding elongated holes 53 and the first pin hole 16.

Description

Technical Field

[0001] The present invention relates to a brace sheet and a wooden beam intersection structure.

Background Art

[0002] In wooden buildings constructed by the wooden frame construction method, wooden columns, wooden beams, etc. are joined via joining metal fittings (fasteners) such as drift pins to tighten the members together, thereby improving seismic resistance and the like. To further enhance the performance, braces (vertical braces and horizontal braces) may be incorporated in the vertical plane and the horizontal plane.

[0003] For example, when attaching a brace to a horizontal plane formed by a large beam or a small beam, which are wooden beams, the end of the brace is attached to a brace sheet, and the brace sheet is attached to the side surface of the wooden beam. Here, Patent Document 1 proposes an example of a brace sheet (here, a brace joining metal fitting for a wooden building).

[0004] By the way, when attaching a brace sheet to a wooden beam, various problems may arise due to the relationship between the joining metal fittings for joining wooden beams to each other and the joining metal fittings for joining a wooden beam and a wooden column. This problem will be outlined with reference to FIGS. 1A and 1B.

[0005] FIG. 1A is a cross-sectional view taken by cutting through the middle of a wooden beam of a wooden beam-dominant wooden beam intersection structure I in which the end face Gb of a separate wooden beam G2 is joined to the side face Ga of a wooden beam G1.

[0006] A recess M is provided in the end face Gb of the wooden beam G2, and a joining metal fitting J having a U-shaped cross-sectional shape is fitted into the recess M. A plurality of bolt holes H through which bolts B are inserted are provided in the wooden beam G1. One end of the bolt B is fixed to the joining metal fitting J via a nut or a head (not shown), and the other end of the bolt B inserted through the bolt hole H is tightened with a nut, thereby forming the wooden beam intersection structure I.

[0007] The mounting plate P to which the end of the brace BR is joined is joined to the brace sheet S via bolts B, and the brace sheet S is attached to the timber beam crossing structure I. However, in order to prevent interference with the connecting hardware J when attaching the brace sheet S to the timber beam crossing structure I, the brace sheet S is attached to the timber beam G1 where there is no connecting hardware J. The brace sheet S is joined to the side surface Ga of the timber beam G1 via bolts B inserted through bolt holes H provided in the timber beam G1.

[0008] In other words, in order to prevent interference between the connecting hardware J and the brace sheet S, there is a problem in that the mounting position of the brace sheet S on the timber beam crossing structure I is restricted.

[0009] On the other hand, Figure 1B is a cross-sectional view of a timber beam cross structure I, in which timber beam G3 is dominant, and the end grain surface Gb of another timber beam G4 is joined to the side surface Ga of timber beam G3, cut in the middle of the timber beam.

[0010] A recess M is provided in the end face Gb of the timber beam G4, and a connecting metal fitting J with a U-shaped cross-section is fitted into the recess M. A bolt hole H is provided in the timber beam G3 through which a bolt B is inserted. One end of the bolt B is fixed to the connecting metal fitting J via its head, and the other end of the bolt B inserted through the bolt hole H is tightened with a nut, thereby forming the timber beam cross structure I.

[0011] The mounting plate P to which the end of the brace BR is joined is joined to the brace sheet S via bolts B, and the brace sheet S is attached to the timber beam crossing structure I. However, in order to prevent interference with the connecting hardware J when attaching the brace sheet S to the timber beam crossing structure I, the mounting position is set at a distance t from the intersection of the two timber beams G3 and G4, where there is no connecting hardware J on the timber beam G4.

[0012] Thus, when the brace sheet S is attached at a distance from the intersection of the wooden beams G3 and G4, there is a problem in that external forces from the brace BR cause additional bending stress in addition to tensile and shear forces on the wooden beams G3 and G4 and their joints. [Prior art documents] [Patent Documents]

[0013] [Patent Document 1] Japanese Patent Publication No. 2014-177799 [Overview of the Initiative] [Problems that the invention aims to solve]

[0014] The present invention has been made in view of the above-mentioned problems, and aims to provide a brace sheet attached to a timber beam intersection structure in which multiple timber beams intersect, which can contribute to the standardization of connecting hardware regardless of the beam depth of each timber beam, and which can prevent large additional stress from being generated on the timber beams and their joints by eliminating the need to attach the brace sheet at a position far from the intersection of the timber beams, and a timber beam intersection structure in which braces are attached to the intersection of the timber beams via this brace sheet. [Means for solving the problem]

[0015] To achieve the above objective, one embodiment of the brace sheet according to the present invention is: In a timber beam crossing structure in which a first timber beam and a second timber beam included in a timber beam directly intersect, or indirectly intersect through a timber column, a first pin hole is provided in both the first and second timber beams, a recess is provided in at least one end face of the first and second timber beams, a connecting fitting having a second pin hole that is circular or semi-track-shaped in front view is fitted into the recess, the corresponding first and second pin holes are aligned and fasteners are inserted through both, and the end of the brace is attached to the timber beam crossing structure, a brace sheet, The first and second abutment pieces abut against the respective sides of the first and second wooden beams and intersect each other in a continuous manner, It has a support piece fixed to the wide surfaces of both the first contact piece and the second contact piece, which supports the end of the brace to be attached, Both the first contact piece and the second contact piece are provided with elongated holes that are long in the beam depth direction of the wooden beam at positions corresponding to the first pin hole, and fasteners are inserted through the corresponding elongated holes, the first pin hole, and the second pin hole.

[0016] According to this embodiment, the first and second wooden beams, both equipped with first pin holes, intersect directly or indirectly via wooden columns, and the first and second contact pieces abut against each other's sides, intersecting in a continuous manner. The support piece is fixed to these wide surfaces and supports the end of the brace to be attached. Both the first and second contact pieces are provided with elongated holes that are long in the beam depth direction of the wooden beam at positions corresponding to the first pin holes. Fasteners are inserted through the corresponding elongated holes, the first pin hole, and the second pin hole. As a result, even if the position of the first pin hole in the wooden beam changes in the beam depth direction, one of the elongated holes will be aligned with the first pin hole and the second pin hole of the connecting hardware, making it possible to insert fasteners through each of the interconnected holes. As a result, even when the first and second timber beams forming the intersecting timber beam structure have various beam depths, it becomes possible to use a common connecting hardware equipped with a second pin hole to align the elongated holes of the brace sheet with the first pin hole of the interconnected timber beams and the second pin hole of the connecting hardware, and insert the fasteners through them.

[0017] Furthermore, it eliminates the need to attach brace sheets in areas where no connecting hardware exists, and allows brace sheets to be attached to the intersections of timber beams, thereby preventing large additional stresses from being generated in the timber beams and their joints.

[0018] Examples of applicable fasteners include drift pins and bolts. Furthermore, the wooden beam has multiple first pin holes spaced apart in the beam depth direction, and the connecting hardware also has multiple second pin holes spaced apart in the height direction (beam depth direction), and it is preferable that the alignable pin holes communicate with each other, and the elongated holes (at intermediate positions) are aligned with the mutually communicating first and second pin holes. In addition, "second pin holes that are circular or semi-track shaped in front view" means that the front view shape of the second pin hole is either circular or semi-track (an outer shape combining a semicircle and a rectangle), and semicircles are included in the semi-track shape. For example, when the connecting hardware has multiple second pin holes spaced apart in the beam depth direction, all second pin holes may be in a circular shape in front view, or the uppermost second pin hole may be semi-track shaped, with semi-track second pin holes continuing from the upper end of the connecting hardware, and the other second pin holes being circular. In the latter configuration, the fastener can be temporarily fixed to the recess on the end grain by inserting the fastener through the first pin hole corresponding to the uppermost semi-track-shaped second pin hole and placing the fastener on the corresponding second pin hole, and then inserting other fasteners through the other corresponding first and second pin holes.

[0019] Furthermore, other embodiments of the brace sheet according to the present invention are: The support piece is positioned at an intermediate height between the first contact piece and the second contact piece. The first contact piece and the second contact piece are characterized in that the elongated hole is provided in at least one of the upper and lower parts of the support piece.

[0020] According to this embodiment, by providing a support piece at an intermediate position in the height direction between the first contact piece and the second contact piece (for example, the central position in the height direction), the support piece that directly supports the brace can be fixed in a stable position relative to each contact piece.

[0021] Here, "in each abutting piece, a long hole is provided in at least one of the upper and lower parts of the support piece" includes a form in which a long hole is provided in one of the upper and lower parts of the fixed position of the support piece in each abutting piece, and a form in which long holes are provided in both the upper and lower parts.

[0022] Also, another aspect of the brace sheet according to the present invention is the support piece is located at one end in the height direction of the first abutting piece and the second abutting piece, one or more of the long holes are provided in the height direction of both the first abutting piece and the second abutting piece, and the support piece has two use postures: a first posture located at the upper end and a second posture located at the lower end.

[0023] According to this aspect, since the support piece is located at one end in the height direction of the first abutting piece and the second abutting piece, a brace sheet having two use postures can be formed: a first posture in which the support piece is located at the upper end and a second posture in which the support piece is located at the lower end. For example, when there is another relatively low wooden beam (referred to as wooden beam B) between wooden beams (referred to as wooden beam A) to which both ends of a horizontal brace are joined, and it is desired to arrange the horizontal brace so as to pass above the wooden beam B without interference between the wooden beam B and the horizontal brace (so-called, when bracing up), the end of the horizontal brace can be attached to the support piece while using the brace sheet in the first posture. On the other hand, when it is desired to arrange the horizontal brace so as to pass below the wooden beam B (so-called, when bracing down), the end of the horizontal brace can be attached to the support piece while using the brace sheet in the second posture.

[0024] Also, in this aspect as well, in each abutting piece, a form in which one long hole is provided and a form in which a plurality (for example, two) of long holes are provided are included.

[0025] Also, another aspect of the brace sheet according to the present invention is the first abutting piece, the second abutting piece, and the support piece are integrally formed members, or The first contact piece, the second contact piece, and the support piece are all made of separate steel plates and are joined together to form a joint member, or The first contact piece and the second contact piece are both bent steel plate members, and the support piece is a partial joining member joined to the bent steel member.

[0026] According to this embodiment, since the brace sheet is an integrally molded member, it can be manufactured with good manufacturability. Furthermore, since the brace sheet is a jointed member in which the first contact piece, the second contact piece, and the support piece are all made by welding or other means to individual steel plates, the dimensions of each member can be made as small as possible, and the manufacturability of each member can be improved. Moreover, since the brace sheet is a partially jointed member in which the support piece is joined by welding or other means to the first contact piece and the second contact piece, which are common bent steel plate members, the number of welds can be reduced while manufacturing the brace sheet.

[0027] Furthermore, one embodiment of the timber beam crossing structure according to the present invention is: In a timber beam crossing structure in which a first timber beam and a second timber beam included in a timber beam directly intersect, or indirectly intersect through a timber column, a first pin hole is provided in both the first and second timber beams, a recess is provided in at least one end face of the first and second timber beams, a connecting fitting having a second pin hole that is circular or semi-track-shaped in front view is fitted into the recess, the corresponding first and second pin holes are aligned and fasteners are inserted through both, and the ends of a brace are further joined, The first and second abutment pieces abut against the respective sides of the first and second wooden beams and intersect each other in a continuous manner, It has a support piece fixed to the wide surfaces of both the first contact piece and the second contact piece, which supports the end of the brace to be attached, The brace sheet is characterized in that both the first contact piece and the second contact piece have elongated holes that are long in the beam depth direction of the wooden beam at positions corresponding to the first pin hole, and the first contact piece and the second contact piece are arranged so that they abut against the respective sides of the first wooden beam and the second wooden beam, and fasteners are inserted through the corresponding elongated holes, the first pin hole and the second pin hole.

[0028] According to this embodiment, when a brace sheet of this embodiment, which supports the end of a brace, is attached to a first timber beam and a second timber beam that intersect directly or indirectly via a timber column, and both have a first pin hole, and a connecting fitting having a second pin hole in a recess on at least one end face is fitted into them, it becomes possible to use a common connecting fitting with a second pin hole to align the elongated holes of the brace sheet with the first pin hole of the interconnected timber beams and the second pin hole of the connecting fitting, and insert fasteners, even when the first and second timber beams forming the timber beam intersection structure have various beam depths. Furthermore, it eliminates the need to attach the brace sheet to areas where there is no connecting fitting, and since the brace sheet can be attached to the intersection of the timber beams, it is possible to prevent large additional stresses from being generated in the timber beams and their joints.

[0029] In this configuration, where the end grain surfaces of the first and second timber beams are directly joined (intersecting) to one side surface of the other, the timber beam to which the end grain surfaces are joined will be equipped with connecting hardware. In contrast, in a configuration where the end grain surfaces of the first and second timber beams are joined to the side surface of a timber column, that is, where both timber beams indirectly intersect via the timber column, both end grain surfaces will be equipped with connecting hardware to which they are joined to the timber column. [Effects of the Invention]

[0030] As can be understood from the above explanation, the brace sheet of the present invention, when attached to a timber beam intersection structure in which multiple timber beams intersect, can contribute to the standardization of connecting hardware regardless of the beam depth of each timber beam, and eliminates the need to attach the brace sheet to a position far from the intersection of the timber beams, thereby preventing large additional stresses from being generated on the timber beams and their joints. Furthermore, with the timber beam intersection structure of the present invention, since the brace is attached to the intersection via the brace sheet of the present invention, construction costs can be reduced by standardizing the connecting hardware regardless of the beam depth of each timber beam, and the generation of large additional stresses caused by external forces acting from the brace on the constituent timber beams and their joints can be prevented. [Brief explanation of the drawing]

[0031] [Figure 1A] This is a cross-sectional view of a conventional timber beam crossing structure, cut midway through the timber beam. [Figure 1B] This is a cross-sectional view of another example of a conventional timber beam crossing structure, where the timber beam is cut in the middle. [Figure 2] This is a perspective view showing an example of a wooden beam intersection before the brace sheet according to the embodiment is attached. [Figure 3] This is a perspective view of an example of a brace sheet according to an embodiment, showing it installed at the intersection of wooden beams as shown in Figure 2. [Figure 4] This is a perspective view of another example of a brace sheet according to the embodiment, showing it installed at the intersection of wooden beams as shown in Figure 2. [Figure 5] This is a perspective view of an example of a timber beam crossing structure according to the embodiment. [Figure 6] This is a perspective view of another example of the timber beam crossing structure according to the embodiment. [Modes for carrying out the invention]

[0032] The brace sheet and timber beam crossing structure according to the embodiment will be described below with reference to the attached drawings. In this specification and drawings, substantially identical components may be denoted by the same reference numerals to avoid redundant explanations.

[0033] [Brace sheet and timber beam crossing structure according to the embodiment] An example of a brace sheet and timber beam intersection structure according to the embodiment will be described with reference to Figures 2 to 6. Here, Figure 2 is a perspective view showing an example of a timber beam intersection before the brace sheet according to the embodiment is attached. Figures 3 and 4 are perspective views of an example of a brace sheet according to the embodiment, showing it in the state of being installed at the timber beam intersection shown in Figure 2. Furthermore, Figures 5 and 6 are perspective views of an example of a timber beam intersection structure according to the embodiment.

[0034] The timber beam intersection 90 shown in Figure 2 is an intersection where the end grain surfaces 12 of timber beams 10A and 10B, which extend in mutually perpendicular directions, are joined to mutually perpendicular side surfaces 21 of the timber column 20. In other words, the mutually intersecting timber beams 10A and 10B intersect indirectly via the timber column 20, forming a column-dominant intersection.

[0035] The brace sheets 50 and 50A shown in Figures 3 and 4 are attached to this intersection 90, and for example, the end 65 of the brace 60 is attached to the brace sheet 50, thereby forming the wooden beam intersection structure 100 shown in Figure 5.

[0036] As shown in Figure 2, the connecting hardware 30 has a connecting piece 31 formed by bending a single steel plate, and a pair of fitting pieces 33 that bend and extend from the connecting piece 31.

[0037] The connecting piece 31 is provided with a bolt hole (not shown), and a bolt (not shown) inserted through this bolt hole is then inserted through a bolt hole (through hole) (not shown) that penetrates the wooden column 20, thereby joining the connecting hardware 30 to the wooden column 20.

[0038] Multiple (four in the illustrated example) second pin holes 35 are provided at corresponding positions on each of the pair of interlocking pieces 33, spaced apart in the height direction of the interlocking piece 33. In the illustrated example, the second pin holes 35A, 35B, 35C, and 35D are provided from top to bottom. Here, in the illustrated example, the second pin holes 35A, 35B, 35C, and 35D all have a circular shape in plan view, but for example, the plan view shape of the uppermost second pin hole may have a semi-track shape that is continuous from the upper end of the connecting hardware.

[0039] On the other hand, the end grain surface 12 of the wooden beam 10 is provided with a recess 14 into which the entire connecting hardware 30 is fitted, and a plurality of (four in the illustrated example) first pin holes 16 are provided that penetrate a pair of opposing side surfaces 11. Here, the recess 14 has a groove into which the connecting piece 31 is loosely fitted with some leeway, and a pair of grooves through which a pair of fitting pieces 33 are inserted, and in plan view it has a U-shape.

[0040] When the connecting hardware 30 is fitted into the recess 14, the corresponding first pin hole 16 and the pair of second pin holes 35 communicate with each other, and the connecting hardware 30 is fixed to the wooden beam 10 by inserting drift pins 40 (an example of fasteners) in the X1 direction through each of the communicating pin holes 16 and 35.

[0041] For example, in a factory or the like, the connecting hardware 30 is attached to the wooden column 20, and after it is transported to the site and erected, the wooden beam 10 is erected by fitting the connecting hardware 30 protruding laterally from each side 21 of the wooden column 20 into the recess 14, and the wooden beam intersection 90 is formed by inserting the drift pins 40 in the X1 direction through the mutually communicating pin holes 16, 35.

[0042] Next, with reference to Figures 3 and 4, an example of a brace sheet installed at the timber beam intersection 90 will be described.

[0043] First, the brace sheet 50 shown in Figure 3 comprises a first contact piece 51A and a second contact piece 51B that abut against the respective side surfaces 11 of the first timber beam 10A and the second timber beam 10B and intersect with each other in a continuous manner, and further comprises a support piece 55 fixed to the wide surfaces of both the first contact piece 51A and the second contact piece 51B to support the end 65 of the brace 60 to be attached.

[0044] Here, the brace sheet 50 may be an integrally molded member in which the first contact piece 51A, the second contact piece 51B, and the support piece 55 are all integrally molded, or it may be a joined member in which the first contact piece 51A, the second contact piece 51B, and the support piece 55 are all made of separate steel plates and joined to each other. Furthermore, the first contact piece 51A and the second contact piece 51B may be a common bent steel plate member, and the support piece 55 may be a partially joined member joined to the bent steel plate member.

[0045] Here, the support piece 55 in the illustrated example is rectangular (square) in plan view, and its two orthogonal end faces are fixed over almost the entire width of the two contact pieces 51A and 51B. However, the plan view shape of the support piece can be triangular, narrow rectangle, or any other shape, provided that it has sufficient area and rigidity to support the end 65 of the brace 60.

[0046] The support piece 55 is provided with mounting holes 67 through which bolts are inserted to bolt-connect the end 65 of the brace 60.

[0047] In the illustrated example of the brace sheet 50, a support piece 55 is provided at the center of the height direction, which is an intermediate position in the height direction between the first contact piece 51A and the second contact piece 51B. Both the first contact piece 51A and the second contact piece 51B are provided with two elongated holes 53 that are long in the beam depth direction, located above and below the support piece 55.

[0048] Here, the elongated holes 53 may be provided one on either the upper or lower side of the support piece 55 in each of the first contact piece 51A and the second contact piece 51B, or a total of three or more may be provided on both the upper and lower sides.

[0049] On the other hand, the brace sheet 50A shown in Figure 4 differs from the brace sheet 50 in that the support piece 55 is provided at one end (the lower end in the illustrated example) of the first contact piece 51A and the second contact piece 51B in the height direction, instead of being provided at an intermediate position in the height direction between the first contact piece 51A and the second contact piece 51B. Here, two elongated holes 53 are provided for each of the first contact piece 51A and the second contact piece 51B, but one may be provided for each, or three or more may be provided for each.

[0050] As is clear when compared with the brace sheet 50, the support piece 55 to which the end 65 of the brace 60 is attached is located lower down, making it possible to position the horizontal brace 60 attached there above or below other wooden beams, for example, wooden beams 10A and 10B, without interfering with other wooden beams with different beam depths.

[0051] In this case, when the horizontal brace 60 is installed below another timber beam, the brace sheet 50A is attached to the side surface 11 of each timber beam 10A, 10B in a second position where the support piece 55 is positioned downwards, as shown in Figure 4 (so-called brace-down use). On the other hand, when the horizontal brace 60 is installed above another timber beam, the brace sheet 50A is inverted vertically from the state shown in Figure 4 and attached to the side surface 11 of each timber beam 10A, 10B in a first position where the support piece 55 is positioned upwards (so-called brace-up use).

[0052] Thus, when installing horizontal braces in a horizontal structural plane, if brace-down or brace-up is required, brace sheet 50A can be applied and used in a preferred position between the first and second positions. When installing horizontal braces in a manner that does not require brace-down or the like, brace sheet 50 can be applied.

[0053] As shown in Figure 5, when attaching the brace sheet 50 to the side surface 11 of each timber beam 10A, 10B, the two elongated holes 53 of each contact piece 51A, 51B are aligned to correspond to one of the four pairs of interconnected first pin holes 16 and second pin holes 35. In the illustrated example, the upper elongated hole 53 is aligned with the uppermost first pin hole 16 and second pin hole 35A, and the lower elongated hole 53 is aligned with the third first pin hole and second pin hole 35C from the top. Then, by inserting the drift pins 40 through the interconnected first pin holes 16 and second pin holes 35A and the upper elongated hole 35, and the first pin holes 16 and second pin holes 35A and the lower elongated hole 35, the timber beam 10, the connecting hardware 30, and the brace sheet 50 are joined via the common drift pins 40.

[0054] By aligning the mounting holes 57 (see Figure 3) of the support pieces 55 of the brace sheet 50 joined to each timber beam 10 with the bolt holes (not shown) provided in the mounting plate 65 welded to the end of the horizontal brace 60, and inserting the bolts 67 to bolt them together, the end 65 of the brace 60 is joined to the timber beam intersection 90 via the brace sheet 50, thereby forming a timber beam intersection structure 100.

[0055] According to the illustrated example of the timber beam crossing structure 100, both the first contact piece 51A and the second contact piece 51B, which are components of the applied brace sheet 50, are provided with elongated holes 53 that are long in the beam depth direction of the timber beam 10 at positions corresponding to the first pin hole 16 and the second pin hole 35. By inserting drift pins 40 through the corresponding elongated holes 53, the first pin hole 16, and the second pin hole 35, even if the position of the first pin hole 16 in the timber beam 10 changes in the beam depth direction, one of the positions of the elongated holes 53 can be aligned with the first pin hole 16 and the second pin hole 35 of the connecting hardware 30, making it possible to insert the drift pins 40. As a result, even when the first timber beam 10A and the second timber beam 10B forming the timber beam cross structure 100 have various beam depths, it becomes possible to use a common connecting hardware 30 equipped with a second pin hole 35 to align the elongated holes 53 (or any position thereof) of the brace sheet 50 with the first pin hole 16 of the interconnected timber beams 10 and the second pin hole 35 of the connecting hardware 30 and insert the drift pins 40 through them.

[0056] Furthermore, the brace sheet 50 can be positioned in the inner corner of the intersection 90, eliminating the need to attach the brace sheet 50 to an area where no connecting hardware 30 is present. This prevents additional stress that may occur in the timber beam 10 when the brace 60 is attached at a distance from the intersection 90.

[0057] The timber beam intersection structure 100A shown in Figure 6 differs from the timber beam intersection structure 100, in which multiple timber beams 10 indirectly intersect via a timber column 20, in that it has an intersection 90A where the end grain surface 12 of one timber beam 10D directly intersects the side surface 11 of one timber beam 10C.

[0058] At the intersection 90, a connecting fitting 30 is fitted into a recess 14 on the end grain surface 12 of one of the wooden beams 10D, and one end of a bolt (not shown) is fixed to the fitting, which is inserted through a pair of side surfaces 11 of the other wooden beam 10C, and the other end protrudes from the side surface 11 and is fastened with a nut.

[0059] In the brace sheet 50, the two elongated holes 53 of the second contact piece 51B, which corresponds to the connecting hardware 30, are aligned with the corresponding first pin hole 16 and second pin hole 35, and drift pins 40 are inserted through both pin holes 16 and 35. On the other hand, the two elongated holes 53 of the first contact piece 51A are aligned with the corresponding first pin holes 16 among the multiple (four in the illustrated example) first pin holes 16 provided in the timber beam 10C, and drift pins 40 are inserted through the corresponding elongated holes 53 and first pin holes 16.

[0060] According to the illustrated example of the intersecting timber beam structure 100A, even when the first timber beam 10C and the second timber beam 10D have various beam depths, it is not necessary to prepare a separate connecting hardware for each timber beam with a different beam depth. Instead, a single connecting hardware 30 can be used to align the elongated holes 53 (or any position) of the brace sheet 50A with the first pin holes 16 of the interconnected timber beams 10 and the second pin holes 35 of the connecting hardware 30, and insert the drift pins 40 through them.

[0061] Furthermore, the brace sheet 50A can be positioned in the inner corner of the intersection 90A, eliminating the need to attach the brace sheet 50A to an area where the connecting hardware 30 does not exist. This prevents additional stress that may occur in the timber beam 10 when the brace 60 is attached at a distance from the intersection 90A.

[0062] Furthermore, other embodiments may be used in which other components are combined with the configurations listed in the above embodiments, and the present invention is not limited in any way to the configurations shown herein. In this regard, modifications can be made without departing from the spirit of the present invention, and can be appropriately determined according to the application form. [Explanation of Symbols]

[0063] 10: Wooden beam 10A, 10C: 1st wooden beam (wooden beam) 10B, 10D: 2nd wooden beam (wooden beam) 11: Side view 12: End grain 14: Recess 16: First pinhole (pinhole) 20: Wooden pillar 21: Side view 30: Connecting hardware 31: Joint piece 33: Fitting piece 35, 35A, 35B, 35C, 35D: Second pin hole (pin hole) 40: Drift pin (fastener) 50, 50A: Brace sheet 51A: 1st contact piece (contact piece) 51B: Second contact piece (contact piece) 53: Long hole 55: Support piece 60: Brace (horizontal brace) 65: Mounting plate (end) 67: Mounting holes 90: Intersection of wooden beams (intersection) 100,100A: Timber beam crossing structure

Claims

1. In a timber beam crossing structure in which a first timber beam and a second timber beam included in a timber beam directly intersect, or indirectly intersect via a timber column, a first pin hole is provided in both the first and second timber beams, a recess is provided in at least one end face of the first and second timber beams, a connecting fitting having a second pin hole that is circular or semi-track-shaped in front view is fitted into the recess, the corresponding first and second pin holes are aligned and fasteners are inserted through both, and the end of the brace is attached to the timber beam crossing structure, a brace sheet, The first and second abutment pieces abut against the respective sides of the first and second wooden beams and intersect each other in a continuous manner, It has a support piece fixed to the wide surfaces of both the first contact piece and the second contact piece, which supports the end of the brace to be attached, A brace sheet characterized in that both the first contact piece and the second contact piece are provided with elongated holes that are long in the beam depth direction of the wooden beam at positions corresponding to the first pin hole, and fasteners are inserted through the corresponding elongated holes, the first pin hole, and the second pin hole.

2. The support piece is positioned at an intermediate height between the first contact piece and the second contact piece. The brace sheet according to claim 1, characterized in that the elongated hole is provided in at least one of the upper and lower sides of the support piece in both the first contact piece and the second contact piece.

3. The support piece is positioned at one end in the height direction of the first contact piece and the second contact piece. One or more of the elongated holes are provided in the height direction of both the first contact piece and the second contact piece. The brace sheet according to claim 1, characterized in that the support piece has two usage positions: a first position where it is located at the upper end and a second position where it is located at the lower end.

4. The first contact piece, the second contact piece, and the support piece are integrally molded members, or The first contact piece, the second contact piece, and the support piece are all made of separate steel plates and are joined together to form a joint member, or The brace sheet according to claim 1, characterized in that the first contact piece and the second contact piece are a common bent steel plate member, and the support piece is a partial joining member joined to the bent steel plate.

5. In a timber beam crossing structure in which a first timber beam and a second timber beam included in a timber beam directly intersect, or indirectly intersect through a timber column, a first pin hole is provided in both the first and second timber beams, a recess is provided in at least one end face of the first and second timber beams, a connecting fitting having a second pin hole that is circular or semi-track-shaped in front view is fitted into the recess, the corresponding first and second pin holes are aligned and fasteners are inserted through both, and the ends of a brace are further joined, The first and second abutment pieces abut against the respective sides of the first and second wooden beams and intersect each other in a continuous manner, It has a support piece fixed to the wide surfaces of both the first contact piece and the second contact piece, which supports the end of the brace to be attached, A wooden beam crossing structure is formed by arranging a brace sheet, in which both the first contact piece and the second contact piece have elongated holes that are long in the beam depth direction of the wooden beam at positions corresponding to the first pin hole, such that the first contact piece and the second contact piece abut against the respective sides of the first wooden beam and the second wooden beam, and fasteners are inserted through the corresponding elongated holes, the first pin hole and the second pin hole.

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